FreeMarker template error (DEBUG mode; use RETHROW in production!): The following has evaluated to null or missing: ==> ign channelId=content.channel.parent [in template "WEB-INF/t/cms/www/default/include/文汇讲堂右边栏.html" at line 9, column 30] ---- Tip: It's the step after the last dot that caused this error, not those before it. ---- Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use [#if myOptionalVar??]when-present[#else]when-missing[/#if]. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: #assign channelId = content.channel.p... [in template "WEB-INF/t/cms/www/default/include/文汇讲堂右边栏.html" at line 9, column 11] - Reached through: #include "../include/文汇讲堂右边栏.html" [in template "WEB-INF/t/cms/www/default/content/文汇讲堂内容.html" at line 201, column 3] ---- Java stack trace (for programmers): ---- freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...] at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) at freemarker.core.UnexpectedTypeException.newDesciptionBuilder(UnexpectedTypeException.java:80) at freemarker.core.UnexpectedTypeException.(UnexpectedTypeException.java:43) at freemarker.core.NonHashException.(NonHashException.java:49) at freemarker.core.Dot._eval(Dot.java:48) at freemarker.core.Expression.eval(Expression.java:81) at freemarker.core.Assignment.accept(Assignment.java:134) at freemarker.core.Environment.visit(Environment.java:326) at freemarker.core.Environment.visit(Environment.java:332) at freemarker.core.Environment.include(Environment.java:2505) at freemarker.core.Include.accept(Include.java:171) at freemarker.core.Environment.visit(Environment.java:326) at freemarker.core.Environment.visit(Environment.java:332) at freemarker.core.Environment.process(Environment.java:305) at freemarker.template.Template.process(Template.java:384) at com.jeecms.cms.staticpage.StaticPageDaoImpl.createContentPage(StaticPageDaoImpl.java:519) at com.jeecms.cms.staticpage.StaticPageDaoImpl.contentStatic(StaticPageDaoImpl.java:352) at com.jeecms.cms.staticpage.StaticPageSvcImpl.content(StaticPageSvcImpl.java:97) at com.jeecms.cms.staticpage.StaticPageSvcImpl.contentRelated(StaticPageSvcImpl.java:190) at sun.reflect.GeneratedMethodAccessor1552.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) at com.sun.proxy.$Proxy59.contentRelated(Unknown Source) at com.jeecms.cms.staticpage.ContentStaticPageListener.afterChange(ContentStaticPageListener.java:56) at com.jeecms.cms.staticpage.ContentStatusChangeThread.afterChange(ContentStatusChangeThread.java:79) at com.jeecms.cms.staticpage.ContentStatusChangeThread.run(ContentStatusChangeThread.java:52)